Electronic device for searching for wirelessly connectable external device, and operating method therefor

Abstract

According to various embodiments of the present disclosure, an electronic device comprises: a communication circuit, and a processor operably connected to the communication circuit, wherein the processor is configured to: receive signals for at least two channels during a designated search time, identify whether a frame is a designated frame based on information included in at least some of the signals, and store information about an access point (AP) based on the signal identified as the designated frame.

What is claimed is: 
     
         1 . An electronic device comprising:
 a communication circuit; and   a processor operatively connected to the communication circuit,   wherein the processor is configured to:   receive signals for at least two channels during a designated search time;   identify whether a frame is a designated frame based on information included in at least a part of the signal; and   store information of an access point (AP) based on a signal identified to have the designated frame.   
     
     
         2 . The device of  claim 1 , wherein, to identify the designated frame, based on the information included in the at least a part of the signal, the processor is configured to:
 decode the at least a part of the signal; and   compare a decoding result of the at least a part of the signal with a reference value.   
     
     
         3 . The device of  claim 2 , wherein the processor is further configured to determine whether to perform full decoding of the signal based on the decoding result of the at least a part of the signal. 
     
     
         4 . The device of  claim 1 , wherein the processor is further configured to identify whether the detected signal has the designated frame based on a result of performing full decoding of the signal. 
     
     
         5 . The device of  claim 1 , wherein the information included in the at least a part of the signal comprises at least one of transmission rate information of the signal or length information of the signal. 
     
     
         6 . The device of  claim 1 , wherein the processor is further configured to, based on the detected signal being identified to not have the designated frame, detect signals in channels other than a channel of the detected signal from among the at least two channels. 
     
     
         7 . The device of  claim 1 , wherein the processor is further configured to identify a transmission period of the detected signal based on the detected signal. 
     
     
         8 . The device of  claim 7 , wherein the processor is further configured to, based on the transmission period of the detected signal, detect signals in channels other than a channel of the detected signal from among the at least two channels, while a next signal of the detected signal is being transmitted. 
     
     
         9 . The device of  claim 1 , wherein the at least a part of the signal comprises a frame header of the signal. 
     
     
         10 . The device of  claim 9 , wherein the frame header of the signal comprises at least one of a legacy preamble, a high throughput (HT) preamble, a very high throughput (VHT) preamble, a high efficiency (HE) preamble, or a combination thereof. 
     
     
         11 . A method of operating an electronic device, the method comprising:
 receiving signals of at least two channels during a designated search time;   identifying whether a frame is a designated frame based on information included in at least a part of the signal; and   storing information of an access point (AP) based on a signal identified to have the designated frame.   
     
     
         12 . The method of  claim 11 , wherein the identifying of the designated frame, based on the information included in the at least a part of the signal comprises:
 decoding the at least a part of the signal; and   comparing a decoding result of the at least a part of the signal with a reference value.   
     
     
         13 . The method of  claim 12 , further comprising determining whether to perform full decoding of the signal based on the decoding result of the at least a part of the signal. 
     
     
         14 . The method of  claim 11 , further comprising identifying whether the detected signal has the designated frame based on a result of performing full decoding of the signal. 
     
     
         15 . The method of  claim 11 , wherein the information included in the at least a part of the signal comprises at least one of transmission rate information of the signal or length information of the signal.